The Vibrating fork type level sensor works on the principle of tuninig forks. There is a piezo ceramic crystal located inside the forks assembly. This frequency is continuously monitored by the internal electronic circuitry. When the fork comes in contact with liquid/solid material, the frequency slightly changes, and this change in frequency is sensed by the electronic circuit which in tuns send out a signal. This signal is processed to give out as a relay output either NO or NC Signal which in turns indicates level signal either low or high depends on application. The light deposit on the container wall does not affect the operation on the FC FORK
Standard Technical Specifications:-
Housing : Aluminum, weather proof, powder coated. Integral with the probe / suitable ofr back panel mounting.
Cable entry : 2 nos. PG 16
Ambient temperature : 0 Deg C to + 60 Deg C
Power Consumption : 2 VA
Mains Voltage : 230/110V AC (+/-15 %), 50hZ, OR 18-55 V DC 65 to 265 V AC (Optional)
Switch status : Green LED display shows Normal, Red LED Shows alarm Normal, Red led Shows alarm.
Output:-
a) 2 set of potential free c/o contacts rated at 5 amps, 230 V AC for non-inductive loads.
b) PNP/NPN with DC mains
Switching delay : Continuously adjustable From 2 to 20 sec. probe free or prob convered. (Optional)
Safety Operation : Field selected switch over for min. or max. (FSL/FSM) switching points.
Applications
Building industry materials, cement, sand, lime, etc.
Foodstuff industry, milk powder, flour, salt, food grains, etc.
Plastic industry , Powder, granular ect.
Timber industry, chemical and mining, etc